.page-home {
  --ph-gap: clamp(72px, 9vw, 128px);
  --ph-soft: rgba(242, 237, 230, 0.76);
  --ph-faint: rgba(242, 237, 230, 0.6);
  background: var(--wood-base);
  color: var(--paper);
  font-family: var(--font-body);
  isolation: isolate;
}

.page-home::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 88px 88px;
}

.page-home > * {
  position: relative;
  z-index: 1;
}

/* ---------- 上下文提示 ---------- */
.page-home .ph-ctx {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: clamp(22px, 3vw, 36px);
  padding-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ash);
}

.page-home .ph-ctx .crumbs__link {
  color: var(--ash);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-home .ph-ctx .crumbs__link:hover {
  color: var(--signal);
}

.page-home .ph-ctx .crumbs__current {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.ph-open {
  position: relative;
  overflow: hidden;
  padding: clamp(36px, 5vw, 68px) 0 clamp(72px, 9vw, 120px);
  background: linear-gradient(180deg, var(--turf-deep) 0%, var(--wood-base) 76%);
  border-bottom: 1px solid var(--line);
}

.ph-open__wash {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% 42%;
  opacity: 0.2;
  filter: saturate(0.55);
  pointer-events: none;
  z-index: 0;
}

.ph-open::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(100deg, rgba(20, 16, 12, 0.95) 0%, rgba(20, 16, 12, 0.68) 50%, rgba(20, 16, 12, 0.92) 100%);
}

.ph-open__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(36px, 5vw, 56px);
}

.ph-open__kicker {
  margin: 0 0 4px;
  color: var(--grass);
}

.ph-open__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(33px, 6vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.ph-open__lede {
  margin: 20px 0 0;
  max-width: 36ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--ph-soft);
}

.ph-dir {
  border-top: 1px solid var(--line-strong);
}

.ph-dir__row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: background-color 0.18s var(--ease), padding-left 0.18s var(--ease);
}

.ph-dir__row:hover {
  background: rgba(255, 122, 26, 0.05);
  padding-left: 10px;
}

.ph-dir__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ash);
}

.ph-dir__body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1 1 auto;
  min-width: 0;
}

.ph-dir__title {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  transition: color 0.18s var(--ease);
}

.ph-dir__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ash);
}

.ph-dir__arrow {
  flex: none;
  font-size: 17px;
  color: var(--ash);
  transition: transform 0.18s var(--ease), color 0.18s var(--ease);
}

.ph-dir__row:hover .ph-dir__title,
.ph-dir__row:hover .ph-dir__arrow {
  color: var(--signal);
}

.ph-dir__row:hover .ph-dir__arrow {
  transform: translateX(4px);
}

/* ---------- 两张不对等卡片 ---------- */
.ph-board {
  padding: var(--ph-gap) 0 clamp(96px, 12vw, 168px);
}

.ph-board__head {
  max-width: 44ch;
  margin-bottom: clamp(32px, 5vw, 56px);
}

.ph-board__title,
.ph-cadence__title,
.ph-coverage__title,
.ph-scenes__title,
.ph-next__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.ph-board__title {
  font-size: clamp(26px, 3.6vw, 40px);
}

.ph-board__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.ph-slab {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 3vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--wood-layer);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.ph-slab::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.32s var(--ease);
}

.ph-slab:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-lift);
}

.ph-slab:hover::before {
  transform: scaleX(1);
}

.ph-slab--wide {
  background: linear-gradient(160deg, var(--turf-deep) 0%, var(--wood-layer) 62%);
}

.ph-slab__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.ph-slab__meta {
  color: var(--ash);
}

.ph-slab__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.4vw, 27px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.015em;
}

.ph-slab__num-line {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 16px 0 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.ph-slab__num {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(58px, 8.6vw, 92px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.ph-slab__plus {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 34px);
  color: var(--signal);
}

.ph-slab__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.ph-slab__text p,
.ph-slab__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ph-soft);
}

.ph-slab__text p + p {
  margin-top: 12px;
}

.ph-slab__media img,
.ph-slab__scale-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-md);
}

.ph-slab__scale-img {
  margin: 22px 0 0;
  opacity: 0.92;
}

.ph-slab--narrow .ph-slab__text {
  margin-top: 16px;
}

.ph-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding-bottom: 2px;
  font-size: 14px;
  font-weight: 500;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 26, 0.35);
  transition: border-color 0.18s var(--ease);
}

.ph-more:hover {
  border-bottom-color: var(--signal);
}

.ph-scale {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.ph-scale__item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ash);
}

.ph-scale__item::before {
  content: "";
  flex: none;
  width: 30px;
  height: 6px;
  border-radius: var(--pill);
  background: var(--turf-mid);
}

.ph-scale__item--b::before {
  background: var(--grass);
}

.ph-scale__item--c::before {
  background: var(--signal);
}

.ph-scale__item--d::before {
  background: var(--electric);
}

.ph-scale .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--paper);
}

/* ---------- 更新节奏 ---------- */
.ph-cadence {
  padding: var(--ph-gap) 0;
  background: var(--turf-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.ph-cadence__head {
  max-width: 40ch;
}

.ph-cadence__title {
  font-size: clamp(25px, 3.4vw, 38px);
}

.ph-cadence__media {
  margin-top: clamp(28px, 4vw, 44px);
}

.ph-cadence__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-md);
  opacity: 0.5;
}

.ph-ruler {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.ph-ruler__node {
  position: relative;
  padding: 24px 0 0;
  border-top: 1px solid var(--line-strong);
}

.ph-ruler__dot {
  position: absolute;
  top: -4px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--grass);
  box-shadow: 0 0 0 4px rgba(62, 158, 114, 0.14);
  transition: background-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.ph-ruler__node:hover .ph-ruler__dot {
  background: var(--signal);
  box-shadow: 0 0 0 6px rgba(255, 122, 26, 0.16);
}

.ph-ruler__time {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--grass);
}

.ph-ruler__name {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition: color 0.24s var(--ease);
}

.ph-ruler__node:hover .ph-ruler__name {
  color: var(--signal);
}

.ph-ruler__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ph-soft);
}

/* ---------- 覆盖范围 ---------- */
.ph-coverage {
  padding: var(--ph-gap) 0;
}

.ph-coverage__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.ph-coverage__title {
  font-size: clamp(25px, 3.4vw, 38px);
}

.ph-coverage__lede {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ph-soft);
}

.ph-coverage__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

/* ---------- 使用场景 ---------- */
.ph-scenes {
  padding: 0 0 var(--ph-gap);
}

.ph-scenes__title {
  font-size: clamp(25px, 3.4vw, 38px);
}

.ph-scenes__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(24px, 3vw, 34px) 0 clamp(24px, 3vw, 34px);
}

.ph-scenes__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.ph-scene {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3vw, 30px) clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, var(--wood-high) 0%, var(--wood-layer) 100%);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.ph-scene:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 122, 26, 0.42);
}

.ph-scene__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ash);
}

.ph-scene__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.ph-scene__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ph-soft);
}

.ph-scene__use {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--electric);
}

/* ---------- 收尾长带 ---------- */
.ph-next {
  padding: 0 0 clamp(72px, 9vw, 120px);
}

.ph-next__strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  background: linear-gradient(100deg, var(--turf-deep) 0%, var(--wood-high) 72%);
}

.ph-next__title {
  font-size: clamp(24px, 3.2vw, 36px);
}

.ph-next__meta {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ash);
}

.ph-next__meta a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 169, 245, 0.35);
}

.ph-next__meta a:hover {
  border-bottom-color: var(--electric);
}

.ph-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .ph-slab__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 200px);
    gap: 26px;
    align-items: start;
  }

  .ph-scenes__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .ph-open__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
    gap: clamp(48px, 6vw, 96px);
  }

  .ph-board__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 28px;
    align-items: start;
  }

  .ph-slab--narrow {
    margin-top: 64px;
  }

  .ph-ruler {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .ph-ruler__node {
    padding: 26px 30px 0 0;
  }

  .ph-coverage__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(40px, 5vw, 72px);
  }

  .ph-scenes__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .ph-next__strip {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 44px;
  }
}

@media (min-width: 1200px) {
  .ph-slab__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 224px);
  }
}
<<<END>>>